He had an Ernest Hemingway quote on the board, and someone(*cough cough @Ookla the Confused*) mentioned him being prolific. The teacher was like, "Not that prolific... not as prolific as someone like, say Brandon Sanderson, putting out, like, three books a year."
Hehe. Or four.
Or when you watch the Wingfeather premiere and note gloryspren swirling around Leeli.